25944 has 32 divisors (see below), whose sum is σ = 69120. Its totient is φ = 8096.

The previous prime is 25943. The next prime is 25951. The reversal of 25944 is 44952.

It is a super-2 number, since 2×25944² = 1346182272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a nialpdrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 529 + ... + 575.

It is an arithmetic number, because the mean of its divisors is an integer number (2160).

2²⁵⁹⁴⁴ is an apocalyptic number.

25944 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34560).

25944 is an abundant number, since it is smaller than the sum of its proper divisors (43176).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25944 is a wasteful number, since it uses less digits than its factorization.

25944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79 (or 75 counting only the distinct ones).

The product of its digits is 1440, while the sum is 24.

The square root of 25944 is about 161.0714127336. The cubic root of 25944 is about 29.6036761930.

25944 divided by its sum of digits (24) gives a triangular number (1081 = T₄₆).

It can be divided in two parts, 259 and 44, that added together give a palindrome (303).

The spelling of 25944 in words is "twenty-five thousand, nine hundred forty-four".